Convertible gas-flue for combination gas and coal ranges



E. C. BEERS.

CONVERTPBLE GAS FLUE FOR COMBINATION GAS AND COAL KANutb. APPLICATION men MAR. 10. 1919.

1,337, 112. Patented Apr. 13,1920.

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UNITED srxrns PATENT OFFICE.

EDWARD-C. BEERS, OF ROCHESTER, NEW YORK, ASSIGNQR T0 PHILLIPS & CLARK STOVE'CQ, INC OF GENEVA, NEW YORK, A CORPORATION OF NEW YORK.

CONVERTIBLE GAS-FLUE FOR COIVIBINATION GAS AND COAL RANGES.

Specification of Letters Patent.

Patented Apr. 13, 1920.

Application .filed March 10, 1919. Serial No. 281,782.

To all whom it may concern:

Be ,it known that I, EDWARD C. Beans, a citizen of the United States, residing at Rochester, in the county of IMonroe and State of New York, have invented certain new and useful Improvements 'in Convertible Gas-Flues for Combination Gas and Coal Ranges, of which the following is a specification.

The object of this invention is to con struct the gas burner box of a .bi-fuel range so that it may .be heated either by gas burners or the product of combustion of the fire in the fire box .of the range.

This and other objects .of this invention will be fully illustrated in the drawings, described in the specification and pointed out p in the claims at the end thereof.

In the accompanying drawings,

Figure 1 is a perspective viewof the combination coal and gas range.

Fig. 2 is avertical section through the gas burner box and coal flue of the range, the

like reference numerals .indicate like parts.

In the construction of the bi-fuel range shown in the accompanying drawings, the ordinary four burner box is divided by means of a permanent and gas-tight partition into two smaller compartments or burner boxes, one of which is :built so as to ;make it convertible lnto an auxlliary coal flue for the products of combustion from the fire box in the range to circulate therein. This arrangement permits the heating of two of the holes in the top of the range by means of either gas or coal. In cold weather, when the range is almost exclusivel-yheated with coal, the burner box can be converted into a part of the coal flue so that the .holes leading out of the box are heated by the coal fire. In the six fho'le range shown in Fig. 1, four of these holes can thus be heated by the coal fire while the two holes on the right-hand side are heated box, which has previously been used as an auxiliary coal fiue, may be reconverted for use with gas burners. Instead of the two holes on the right-hand side of the stove, four holes are thus made available for use in cooking with gas. The two holes on the left-hand side of the range, which are located directly above the fire box, will then remain idle.

Thus the range shown in the drawings may have four holes exposed tothe coal fire and two holes exposed to gas burners in cold weather and as in warm weather four holes are available for'cooking with gas, the two holes exposed to the coal fire may be left idle or used.

In the drawings, reference numeral 1 indicates the fire box of the range. Leading from this fire box on one side thereof is the coal fine 2 which leads over the oven 3 and down at the side thereof as shownat 4. At the bottom of the oven the hot gases from the fire box which pass over and down the oven 3 are deflected to the front of the oven by means of the baffle plate 5. After the gases have passed the baffie plate 5 they are allowed to pass out through the rear of the flue into the chimney 6.

In order to heat the oven '3 by means of gas a false bottom 7 is inserted into the oven and is supported therein at a suitable distanee above the floor of the oven. A gas burner 8 projects through the side of the oven between the floor proper and the false bottom thereof. This burner is used to heat the oven when the range is not heated by coal fire.

Mounted above the coal flue 2 are the gas box 9 is made in two sections 15 and 16 j which swin on the hinges 17 and 18 rebox circulate in it and supply heat to the.

holes 11 and 12 in the top of the range.

For this purpose the burners which are mounted below each of the holes 11 and 12,

are removed. The bottom of the burner spectively. Mounted in front of the burner box 9 is the swinging front plate 19. The

front of the burner box is ordinarily left open for the insertion of the gas burners and the admission of'the necessary air for the combustion of the gas as it issues from the burners. This front is closed by the front plate 19 when the sections 15 and 16 of the bottom of the burner box 9 are opened, which is done by swinging each of these sections to the dotted line position 1 shown in Fig.1. When moving into this position the front plate 19 which rests on top of the sections 15 and 16 is lifted by them and is swung into the dotted line pois open. The front of the burner box is hermetically closed by the front plate 19 while at the same time the bottom of the burner box is kept open. It is understood before the bottom of it can be opened and thatthe gas burners which are removable must first be removed from the burner box fire box will circulate in it and heat the top of the burner box.

the range permits the use of the range for This arrangement in 5 cooking with coal not only on the holes 20 and 21, which are located directly above the fire box, but it also allows heating of the holes 11 and 12 by the same coal fire instead of by gas as previously described.

To deflect the products of combustion into the burner box 9 after the bottom of it has been opened, a damper 22 is mounted in K the flue 2. This damper is made up of two sections which are mounted near the middle of the flue and are adapted to swing therein and beset at any angle to the directionof the flow of the products of combustion. If The damperis set at an angle to the bot- "tom of the flue in order to more readily defleetv the gases upward into the gas burner box. See Fig. 1.

The construction above described is capa' ble of modifications, some of which are shown as follows:

In Fig. 5 the sections 40 and 41 are mounted to swing in such a manner that the section 4.0 will swing in the same direction as the section 41 and overlap the section all as shown in dotted lines in Fig. 5.

Instead of providing the -bottom with -swinging doors or sections for the purpose of opening it, a slide may be used as shown in Fig. 3. This slide comprises the bottom of the burner box and is drawn to the front of the range to open the burner box from below. 1 V

It will be understood that with each ofthe modified constructions shown in the several figures the front ofthe burner box must be closed with the front plate 19 when the bot "tom of the burner box is opened. I claim: 1. 'In a bi-fuel'range, the combination of a draft flue, a gas burner box provided on top of said flue, and means for admitting the products of combustion passing through said draft flue into the bottom of said gas burner box.

2. In a bi-fuel range, the combination of a draft flue, a gas burner box provided on top of said flue, said box having an opening leading into said flue from above, and a door for closing said opening,whereby, on the opening of said door, the products of combustion in said flue are admitted into said box.

3. In a bi-fuel range, the combination of a draft flue, a gas burner box provided on top of said flue, said gas burner box having an opening leading into said flue from above, said gas burner boxhaving a second opening leading to the outside of the range, and means for opening and closing both of the openings in said .gas burner box. i

4. In a bi-fue'l. range, the combination of a draft flue, -a gasburner box provided on top of said flue, gas burners mounted in said gas burner box, said gas burners being removably mounted in said gas burner box,

said gas burner box having one opening leading into said flue from above and another opening leading to the outsideof the range for the admission of said gas burners, and means for simultaneously closing the openinglleading from the outside of the" range and opening the opening leading into said flue. I

5. In a bi-fuel range, the combination of a draft flue for the coal fire pot, a gas burner box on top of said flue, said box normally excluding therefrom the products of combustion passing through the flue, and means for making the box a part of the flue so as to pass the products of combustion of the fire pot into or through the box. l

6. In a combination coal and gas range,

the combination of a coal flue, a burner box mounted above said coal flue, means for opening said burner box to bi-pass the products of combustion from said flue 5 throu h said burner box.

' 7. n a combination coal and gas range,

the combination of a coal flue, a burner box mounted above said coal flue, means for opening said box, and means for deflecting the products of combustion from said flue 10 through said burner box into said flue.

In testimony whereof I afiix my signature.

EDWARD C. BEERS. 

